Hi. I am hoping someone can explain the significance of PF & Spirometry. My peak flow is always 200- 250 and varies very little whilst my spirometry (FEV1/FVC) is restricted but is on the low side of normal at 80/83% predicted. During the past few months, I have been finding increased SOB and difficulty in lying flat yet my Peak Flow remains the same - I don't understand how this can be and what I should do about it.
I don't have asthma but have some minor small airway narrowing + some diaphragm weakness. My consultant promised an appt back in November but it has never arrived and I have no resp nurse follow-up at my GP surgery probably because of my lack of diagnosis.
Hope someone can enlighten me as to how these tests work. Many thanks. Clare